a = 1
assert a == 1

try:
    raise Exception("lalala")
except Exception, e:
    print e

b = [1, 2, 3, 4]
for i, j in enumerate(b):
    print i, j

i = 0
while i < 10:
    if i == 1: print "!1",
    elif i == 3: print "!33",
    elif i == 5:
        print "!555",
    else:
        print i,
    i += 1
print

if i == 10: print "yeah"
